1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafdc3c14e3de105ff3e9ea73a771323ce81a8475d80bc893b18d9cb3bb925a5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32ace9ff-7e0f-43a0-8234-2604b9987939.json and https://artists.proofprofile.net/proofs/artist/32ace9ff-7e0f-43a0-8234-2604b9987939.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b50ce9b614f6abc0a6ca76916089e0819f4d71999c2dd12c6c90043a22258b. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472001117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06e178c8b7c4d33a9a71c0d1d0c537ccf464183a6cc8a408b039c7be1841937. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472001121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4518b11e66ff38ad064d27c55322dd979d831af2c5f5b395a8c532f31bf9195. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472001123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e49166ecbfe2fe9e9c104220483b53656d5451da822a32cfb63d10e5183a1c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472001125.
Meditation Melodies for Peaceful Thoughts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa5366978504bdef6153421e5084d6fcaceff0611d49dd52cef0b17ee33ff35. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5292c59bdca8686742dc79f7f8811ddaf701a6e9e2454c25b00b279efd7fdd2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cc29999701888fcac9052d9765c226f41afd2f3da50f4ebc02cd2c5f879a25. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7b56e9b6b96d1e9db939f07ea86d116a47ce522f3ad5624d0caa4101ab99a7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2464002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8753f6f00a593d3758a617f4385930675b112b1315b52d431a2c2143ea3fff2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2464020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc13a76bed61d053b89a7ce297a887ea8e34c98138e31812cf446f48de5cf2c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463943.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2b08bc163abc66bd30d290888d64be60d7cfbf3987b1a0bb18f732c7aa9a8d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc435d7f3442150a5ad066480255a6d62e195160bfc11cad18a3314e8a4ae50e. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb8884c97f6ecd353eaf805f1b834b6d99f9cf6cd5ae4b5a4868957e99bef53. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2463992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8379cc920fd8badb2bda3796f25a55e12ebc91475924b621da3de63e8c935ee. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2464011.